Recirculation Conversion Kit Fits XOT1836,XOT36 (adds 2 1/4" to height)

Round Charcoal Replacement Filter Fits XOS, XOB, XOP, XOT, XOI

(Set of 2)

Recirculation Conversion Kit Fits XOT1830, XOT30 (adds 2 1/4" to height)

Rectangular Charcoal Replacement Filter Fits XOV, XOJ, XOM, XOMI, XOR

Recirculation Conversion Kit Fits (wall)